/* 基础样式 */
* {
  margin: 0;
  padding: 0;
  list-style: none;
}
.parent {
  width: 500px;
  padding: 10px;
  border: 2px solid black;
  margin: 100px auto;
}
/* .child {
  margin: 10px 0;
  padding: 10px;
  border: 2px solid skyblue;
} */
.money {
  color: red;
}

.product {
  width: 400px;
  padding: 20px;
  border: 2px solid #000;
  border-radius: 5px;
  margin: 10px;
}
